BR112022014652A2 - METHOD, EQUIPMENT AND SYSTEM FOR CODING AND DECODING A BLOCK OF VIDEO SAMPLES - Google Patents

METHOD, EQUIPMENT AND SYSTEM FOR CODING AND DECODING A BLOCK OF VIDEO SAMPLES

Info

Publication number
BR112022014652A2
BR112022014652A2 BR112022014652A BR112022014652A BR112022014652A2 BR 112022014652 A2 BR112022014652 A2 BR 112022014652A2 BR 112022014652 A BR112022014652 A BR 112022014652A BR 112022014652 A BR112022014652 A BR 112022014652A BR 112022014652 A2 BR112022014652 A2 BR 112022014652A2
Authority
BR
Brazil
Prior art keywords
block
sub
decoding
equipment
video samples
Prior art date
Application number
BR112022014652A
Other languages
Portuguese (pt)
Inventor
gan Jonathan
Original Assignee
Canon Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Kk filed Critical Canon Kk
Publication of BR112022014652A2 publication Critical patent/BR112022014652A2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

MÉTODO, APARELHO E SISTEMA PARA CODIFICAR E DECODIFICAR UM BLOCO DE AMOSTRAS DE VÍDEO. A presente invenção refere-se a um sistema e um método para decodificar um sub-bloco de coeficientes residuais de um bloco de transformada a partir de um fluxo de bits de vídeo. O método compreende determinar se a ocultação de bit de sinal é usada para o sub-bloco, a determinação com base em um valor de um sinalizador de salto de transformada determinado para o sub-bloco e um valor de um sinalizador de ocultação de bit de sinal associado ao sub-bloco; se a ocultação de bit de sinal não for usada, decodificar um número de bits de sinal igual a um número de coeficientes significativos no sub-bloco; e decodificar o sub-bloco reconstruindo os coeficientes residuais do sub-bloco utilizando os bits de sinal decodificados.METHOD, EQUIPMENT AND SYSTEM FOR ENCODING AND DECODING A BLOCK OF VIDEO SAMPLES. The present invention relates to a system and method for decoding a sub-block of residual coefficients of a transform block from a video bit stream. The method comprises determining whether sign bit concealment is used for the sub-block, determining based on a value of a transform hop flag determined for the sub-block and a value of a bit masking flag of signal associated with the sub-block; if sign bit concealment is not used, decoding a number of sign bits equal to a number of significant coefficients in the sub-block; and decoding the sub-block by reconstructing the residual coefficients of the sub-block using the decoded signal bits.

BR112022014652A 2020-03-10 2020-11-23 METHOD, EQUIPMENT AND SYSTEM FOR CODING AND DECODING A BLOCK OF VIDEO SAMPLES BR112022014652A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2020201753A AU2020201753B2 (en) 2020-03-10 2020-03-10 Method, apparatus and system for encoding and decoding a block of video samples
PCT/AU2020/051270 WO2021179034A1 (en) 2020-03-10 2020-11-23 Method, apparatus and system for encoding and decoding a block of video samples

Publications (1)

Publication Number Publication Date
BR112022014652A2 true BR112022014652A2 (en) 2022-09-20

Family

ID=77670368

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022014652A BR112022014652A2 (en) 2020-03-10 2020-11-23 METHOD, EQUIPMENT AND SYSTEM FOR CODING AND DECODING A BLOCK OF VIDEO SAMPLES

Country Status (9)

Country Link
US (1) US20230140041A1 (en)
EP (1) EP4118827A4 (en)
JP (1) JP7441314B2 (en)
KR (1) KR20220127337A (en)
CN (1) CN115088259A (en)
AU (1) AU2020201753B2 (en)
BR (1) BR112022014652A2 (en)
TW (1) TWI813922B (en)
WO (1) WO2021179034A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230164355A1 (en) * 2020-03-31 2023-05-25 Lg Electronics Inc. Image decoding method and device therefor
US20230164361A1 (en) * 2020-03-31 2023-05-25 Lg Electronics Inc. Image decoding method for coding image information including tsrc available flag, and device therefor
WO2023236113A1 (en) * 2022-06-08 2023-12-14 Oppo广东移动通信有限公司 Video encoding and decoding methods, apparatuses and devices, system, and storage medium
WO2024008060A1 (en) * 2022-07-05 2024-01-11 Mediatek Inc. Method and apparatus of dependent quantization for video coding
WO2024060099A1 (en) * 2022-09-21 2024-03-28 Oppo广东移动通信有限公司 Encoding method, decoding method, code stream, encoder, decoder, and storage medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9313498B2 (en) * 2012-04-16 2016-04-12 Qualcomm Incorporated Sign hiding techniques for quantized transform coefficients in video coding
CN104380737B (en) * 2012-06-22 2018-10-26 夏普株式会社 Arithmetic decoding device
US20140286412A1 (en) * 2013-03-25 2014-09-25 Qualcomm Incorporated Intra dc prediction for lossless coding in video coding
US9456210B2 (en) * 2013-10-11 2016-09-27 Blackberry Limited Sign coding for blocks with transform skipped
EP4114006A4 (en) 2020-02-27 2024-02-28 Lg Electronics Inc Method and apparatus for decoding imaging related to sign data hiding

Also Published As

Publication number Publication date
TWI813922B (en) 2023-09-01
TW202135530A (en) 2021-09-16
WO2021179034A1 (en) 2021-09-16
EP4118827A4 (en) 2024-04-24
EP4118827A1 (en) 2023-01-18
US20230140041A1 (en) 2023-05-04
JP2023513414A (en) 2023-03-31
AU2020201753A1 (en) 2021-09-30
KR20220127337A (en) 2022-09-19
JP7441314B2 (en) 2024-02-29
AU2020201753B2 (en) 2022-09-08
CN115088259A (en) 2022-09-20

Similar Documents

Publication Publication Date Title
BR112022014652A2 (en) METHOD, EQUIPMENT AND SYSTEM FOR CODING AND DECODING A BLOCK OF VIDEO SAMPLES
BR112022004883A2 (en) Method implemented by a decoder, non-transient computer readable media, and decoding device
BRPI0520729A2 (en) method for encoding audio signals; encoder for encoding audio signals; decoder for decoding audio signals; system for digital audio compression; computer program product for encoding audio signals; computer program product; and computer program product to decode continuous bitstream
BR112022005448A2 (en) Methods implemented by encoder, decoder, video encoding devices, and computer product
MY176187A (en) Selective bass post filter
TW200737995A (en) Method and apparatus for determining an encoding method based on a distortion value related to error concealment
MX2021011012A (en) Gradual decoding refresh in video coding.
BRPI0610903A2 (en) system and method for scalable encoding and decoding of multimedia data using multiple layers
RU2005129107A (en) IMAGE CODING METHOD
ATE320681T1 (en) TRANSMISSION SYSTEM
BR112022005495A2 (en) Image header flagging in video encoding
WO2007138419A3 (en) Decoding of predictively coded data using buffer adaptation
BR112022005632A2 (en) DECODING METHOD, DECODING DEVICE, NON-TRANSITORY COMPUTER READable MEDIUM, ENCODING APPARATUS AND SYSTEM
BR112022005091A2 (en) ENCODER, DECODER AND CORRESPONDING METHODS FOR SUBPICTURE SIGNALING IN SEQUENCE PARAMETERS SET
BR112021021364A2 (en) Encoder, decoder, encoding method and decoding method
BR112022005471A2 (en) Ols for spatial scalability and snr
BR112022005047A2 (en) A DEVICE, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
FI3963888T3 (en) Handling of decoder-side motion vector refinement (dmvr) coding tool for reference picture resampling in video coding
CL2021000069A1 (en) Signaling information about the value of a parameter in a set of parameters to reduce the amount of data contained in an encoded video bitstream
BR0007042A (en) Method and device for encoding a signal, encoder, camera system, decoding method, scalable decoder, receiver, scalable bit stream, and, storage medium
BR112022018108A2 (en) VIDEO PROCESSING METHOD, APPARATUS FOR PROCESSING VIDEO DATA, AND COMPUTER-READable STORAGE AND RECORDING MEDIA
MX2022010390A (en) Methods and apparatus for secondary transform signaling in video coding.
BR112022019219A2 (en) ENCODER, DECODER AND CORRESPONDING METHODS
BR112022000623A2 (en) Method, apparatus and system for encoding and decoding a block of video samples
BR112022024643A2 (en) VIDEO DATA CODING AND DECODING